https://ant.apache.org/: master POM (The Apache Software Foundation) 
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 *
 *      https://www.apache.org/licenses/LICENSE-2.0
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package org.apache.tools.ant.taskdefs.condition;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.ProjectComponent;


Condition that tests whether a given string evals to true

Since:Ant 1.5
/**
 * Condition that tests whether a given string evals to true
 *
 * @since Ant 1.5
 */
public class IsTrue extends ProjectComponent implements Condition {
    
what we eval

/**
     * what we eval
     */
    private Boolean value = null;

    
set the value to be tested; let ant eval it to true/false

Params:
  • value – the value to test
/**
     * set the value to be tested; let ant eval it to true/false
     * @param value the value to test
     */
    public void setValue(boolean value) {
        this.value = value ? Boolean.TRUE : Boolean.FALSE;
    }

    
Throws:
Returns:the value
/**
     * @return the value
     * @throws BuildException if someone forgot to spec a value
     */
    @Override
    public boolean eval() throws BuildException {
        if (value == null) {
            throw new BuildException("Nothing to test for truth");
        }
        return value;
    }

}